Apparatus for adjusting the beat of pendulum-clocks



0 e 0-. H. BROWN & H; J. WELTEROTH. APPARATUS FOR ADJUSTING THE BEAT OF PENDULUM CLOCKS.

No. 292,282. Patented Jan. 22, 1884.

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I 5-.- 1 W on a; ygjmjwfi 5 9 cg BY Max/MAM ATTORNEY ,Uierirnn STATES Parent ononen H. snows AXD HENRY J. WEL'LEROTH, or nnossnvac, ra.

APPARATUS FOR ADJUSTING THE BEAT OF PENDULUM-CLOCKS.

fPlCIFIGA'iION forming part of Letters Patent No. 292,282, dated January 22, 1884.

Application filed August 4, I883.

Zlo all whom. it may concern.-

Be it known that we, GEORGE H. Bnown and HENRY J. WELrERo'rH, of Blossburg, in the county of Tioga and State-of Pennsylvania, have invented a new and Improved Pendulum- Clock, of which the following is a full, clear, and exact description.

The object of our invention is to provide means for the adjustment of the verge or pal let relatively with the escapement and pendulum-rod whereby the clock may be set in perfeet beat when resting on an unlevel surface or support.

The invention consists in the combination, With the escapement-wheel, the verge or pal let, and the pendulum-rod, of an adjustingscrew j ourna-led in bearings on the verge-fork, so as to act when turned in one direction or the other to deflect the verge-fork with relation to the pendulum-rod and the verge or pallet, to cause the verge or pallet-teeth to be properly engaged by the escapement-wheel, should the clock set out of level either way.

The invention consists, also, in special eon-f structions of the parts in detail and as combined with each other, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front view of my improvement as applied to use. Figs. 2 and 3 are enlarged detail front views of the verge-fork bearings and connections, and Fig. 4 is a sectional plan view on the line a: m, Fig. 2.

\Ve represent in Fig. 1 only as much of a pendulum-clock and its movement as is necessary to set forth our in1provement,which con sists, in this example, in fitting the verge-fork a with a screw-rod, b, which works in bearings c (I, carried by the fork of the verge.

The verge or pallet f, to which the fork a is 1 (Model.)

The verge-fork bearing 0 consists of a part, c, fixed rigidly to the verge-fork a, and a part, 0*, pivoted to the part c at 7;, to swing thereon in vertical plane. The part 0 is screw-tapped for anut to receive the screw-threaded portion 1) of the rod b, which may work up and down therein, the nut c accommodating itself on the pivot 7. to any deflection of the fork a of the verge.

The verge-arm bearing (Z consists of a part, (1, fixed to fork a, and having an eye, dflthrough which the screw-rod b can move loosely and rotate freely, collars Z I being fixed to rod b at each side of eye (P, so that any turning of the rod b in its nut 6- will act to deflect or bend the verge-fork and throw the verge or pallet f to the ri ht or left, as required. The bear ing (I may have two eyes, (1, one at each side of a single fixed collar, Z, on the rod 7), if desired.

The operation is as follows: Supposing the screw-rod I) to have at Z) a right-hand thread, i if the clock stands on a surface inclining downward toward the left, the red I) will be turned 1 toward the right,thereby bowing out the vergcfork (0 from a normal position by shortening the distance between bearings c (l and throwing the tooth fof the verge or pallet f over i to the left, while, if the clock stands inclining downward toward the right, the screw Z) will 1 be turned toward the left for opposite effect on the verge-fork by a drawing downward of verge or pallet tooth f, and correspondingly l raising the opposite tooth, f, as will readily be understood. The verge or pallet f may 3 thus always be relatively adjusted to properly be acted 011 by the cscapement-wheel to set and keep the clock in perfect beat.

Our improvementis simple and inexpensive. and may readily be applied to old clocks or I those in course of manufacture with like useful results.

Having thus described our invention, we

attached, is pivoted at f, to oscillate by en- I claim as new and desire to secure bv Letters gagement with it of the escapement-whecl g of l Patent the clock-movement. The lower end of the verge-fork has the usual eye or loop, 7:,through which passes the rodi of the pendulum,which has the common flexible connection, j, with the movement-frame, and may be of any approved construction.

1. In a pendulum-clock, the combination, with an elastic verge or pallet fork, of a screw l for bowing the same, substantially as and for the purpose set forth.

2. A pendulumclock constructed with a verge or pallet fork, a, fitted with bearingsc d IOO and screw-rod Z), the Verge or pallet being pivoted at f to be engaged by the escapeinentwheel 9, and the Verge-arm being connected at 71 with the pendulum-red i, substantially as shown and described.

fixed to arm 0, and a pivoted nut, 0 a bearing, (7, fixed to arm 0, and the adjusting screwrod 1), held rigidly lengthwise in the bearing (1, and adjustable in the bearing 0 for dcflect- I 5 ing' the verge 0r pallet fork, substantially as GEO. H. BROWN. 0 HENRY J. WELTEROTH. Witnesses:

Wit. L. RICHARDS, O. H. BENNETT. 

